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文献和实验Detection and Measurement of Radioactivity
resembling X-rays. An example of a gamma emitter is 131-I (iodine). Gamma radiation may accompany either alpha or beta particle emission. A traditional unit of radioactivity is the Curie (Ci), which is defined as that quantity of any radioisotope
Hints and precautions for the care, feeding and breeding of Neurospora
, above 30°C. We routinely make crosses on SC slants in 18 X 150 mm tubes, using foam or cotton plugs. Push-on metal or plastic caps should be avoided with cross tubes because they result in more rapid water loss and are more prone to contamination
Detection and Measurement of Radioactivity
low velocities. A hard beta emitter such as 32-P (phosphorous) is more dangerous because its beta particles carry more kinetic energy (however it is easier to detect - read on). Gamma rays consist of electromagnetic radiation resembling X-rays
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